netv North- American Insects. 325 



smooth area ; pleura extremely densely punctured. Pubes- 

 cence of thoracic dorsum ochreous in front and on scutellum 

 but the black band between the wings larger than either of 

 the ochreous areas ; pubescence on sides of metathorax black, 

 on pleura dirty ochraceous in front, passing through sooty to 

 black behind. Tegulje black ; wings brownish hyaline, with 

 dark brown nervures, along the courses of which the wing is 

 irregularly stained with brown ; third submarginal cell nar- 

 rowed about half to marginal. Legs with brown-black hair, 

 tending to chocolate ; on the outer side of the tarsi the pubes- 

 cence is whitish and appressed, on the inner anterior edge of 

 the basal joints it is shining coppery, very brilliant, and each 

 tarsal joint has a short apical fringe of ferruginous bristles. 

 Abdomen above with the first three segments covered with 

 ochreous hair, the remaining ones with black; pubescence of 

 venter black. 



<^. — Length about 15 millim. 



Differs from the female in having the light hair somewhat 

 yellower; a patch of yellow hair on the face below the an- 

 tennse ; some yellow hair among the black on middle of 

 vertex ; band between the wings not black, but ill-detined, 

 marked by the duller, more sooty, tint of the hair ; third 

 abdominal segment with some black hair mixed with the 

 yellow; following segments with long whitish hairs, reddish 

 at base, intermixed with the black. Venter with yellowish 

 hair. Legs with more of the coppery or ferruginous hair. 

 Second segment of flagellum barely shorter than first and 

 much shorter than third. 



9 1 — Like the female, but much smaller. Length about 

 15 millim. 



Hab. Pribilof Islands, Bering Sea ; 4 ?,2 (^,1 ? {Trevor 

 Kincaid). The specimens were all collected on St. Paul, 

 Aug. 1 and 25, 1897. Several (3 ? , 1 5) were at flowers of 

 Lathyrus, Aug. 1. This Lathyrus was, I presume, L. mari- 

 timus, Bigel., the only species of the genus recorded by 

 Dr. Merriam from the Pribilof Islands. 



This Bomhus was the only bee to be found on the islands, 

 notwithstanding that there is a tolerably extensive series of 

 bright-flowered plants, as enumerated by Dr. Merriam in 

 Proc. Biol. Soc. Wash., July 1892. 



So many northern Bombi have been described that it 

 requires some courage to add another name to the list. The 

 present species is, I believe, endemic in the Pribilof Islands, 

 for I cannot find anything described from the mainland or 

 any of the other islands which agrees with it ; and Mr. Kincaid 

 brought me a series of Bombi from Sitka and Unalaska, none 

 Ann, & Mag. N. Hist. Ser. 7. Vol. ii. 23 



